Flowmeter on-line calibration device

Abstract

The utility model provides a flowmeter on-line calibration device which is characterized in that a control box and a standard flowmeter are arranged on a fixing frame, a liquid inlet of the standard flowmeter is communicated with a first end of a first connecting pipe, a second end of the first connecting pipe is in butt joint with an oil loading pipeline of an oil loading system, and the control box is in communication connection with the standard flowmeter. And the control box displays the measurement result of the standard flowmeter. According to the flowmeter online calibration device disclosed by the invention, when the flowmeter of the oil loading system needs to be calibrated, the second end of the first connecting pipe is butted with the oil loading pipeline of the oil loading system, and then the oil loading system is opened, so that oil enters the standard flowmeter through the oil loading pipeline; on-line calibration of the flowmeter of the oil loading system can be achieved by comparing the readings of the standard flowmeter and the flowmeter in the oil loading process of the oil loading system, and compared with existing standard tank method calibration, the calibration device is low in operation difficulty and capable of effectively saving manpower.

Description

TECHNICAL FIELD

[0001] The utility model relates to flowmeter measurement calibration field, concretely is a flowmeter online calibration device. BACKGROUND

[0002] Flowmeter is a kind of instrument for measuring the flow of fluid in pipeline.The flowmeter used in petrochemical industry must be calibrated before leaving factory, and the calibration process is often that production factory calibrates by itself using calibration device or sends the equipment to relevant organization for calibration.But the precision of flowmeter can be influenced by field application conditions, such as flow fluctuation, different physicochemical properties of medium and the like, so each place or relevant unit stipulates that the newly installed flowmeter must be calibrated by local metrology institute or authorized organization before being put into use, and must be checked once every six months after being put into use to determine the working state of equipment.

[0003] The current online calibration of flowmeter adopts standard tank method, and its principle is to make a stainless steel tank with standard volume and scale, oil product is pumped into the tank by oil feeding system, then volume value is read, and the value is compared with the value shown by flowmeter.

[0004] However, due to the large volume and high height of stainless steel tank, it is difficult to level the stainless steel tank, and multiple people are needed to cooperate with calibration each time, so the calibration of flowmeter using standard tank method is difficult. UTILITY MODEL CONTENT

[0005] Therefore, the utility model embodiment provides a flowmeter online calibration device to solve the problem of great calibration difficulty caused by standard tank method.

[0006] To achieve the above object, the utility model embodiment provides the following technical scheme:

[0007] A flowmeter online calibration device, comprising: a fixing frame, a control box, a standard flowmeter and a first connecting pipe;

[0008] The control box and the standard flowmeter are arranged on the fixing frame;

[0009] The liquid inlet of the standard flowmeter is communicated with the first end of the first connecting pipe;

[0010] The second end of the first connecting pipe is used for butt joint with oil feeding pipeline of oil feeding system;

[0011] The control box is in communication connection with the standard flowmeter, and the control box is used for displaying the measurement result of the standard flowmeter.

[0012] Preferably, the control box comprises: a processor, a display, a keyboard, a data storage and a power supply;

[0013] The display, the keyboard and the data storage are in communication connection with the processor.

[0014] The power supply is electrically connected with the processor, the display and the data storage respectively.

[0015] Preferably, the standard flowmeter is a screw flowmeter.

[0016] Preferably, the second end of the first connecting pipe is provided with a first dry quick connector.

[0017] Preferably, the utility model further comprises an electrostatic grounding clamp connected with the fixing frame.

[0018] Preferably, the utility model further comprises a densimeter arranged at the liquid outlet of the standard flowmeter, and the densimeter is used for measuring the fluid density and temperature.

[0019] Preferably, the utility model further comprises a pressure gauge arranged at the first connecting pipe.

[0020] Preferably, the utility model further comprises a plurality of rollers arranged at the bottom of the fixing frame.

[0021] Preferably, the rollers are universal wheels.

[0022] Preferably, the utility model further comprises a second connecting pipe and a second dry quick connector.

[0023] The first end of the second connecting pipe is communicated with the liquid outlet of the standard flowmeter.

[0024] The second dry quick connector is arranged at the second end of the second connecting pipe and is used for being communicated with the oil tank truck.

[0025] According to the flowmeter online calibration device provided by the utility model, when it is necessary to calibrate the flowmeter of the oil delivery system, the second end of the first connecting pipe is butted with the oil delivery pipeline of the oil delivery system, then the oil delivery system is opened, the oil is made to enter the standard flowmeter through the oil delivery pipeline, the readings of the standard flowmeter and the flowmeter in the oil delivery process of the oil delivery system are compared, and thus the online calibration of the flowmeter of the oil delivery system is realized. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described in the following are only part of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0027] Figure 1 A structural schematic view of the flowmeter online calibration device provided by the embodiment of the present application is provided.

[0028] Figure 2 A top view of the flowmeter online calibration device provided by the embodiment of the present application is provided.

[0029] Figure 3 A front view of the flowmeter online calibration device provided by the embodiment of the present application is provided.

[0030] Figure 4 A connection schematic view of the flowmeter online calibration device provided by the embodiment of the present application and the oil delivery system and the tank truck is provided.

[0031] Among them, the fixed frame 1, the control box 2, the standard flowmeter 3, the oil discharge valve 31, the first connecting pipe 4, the first dry quick connector 5, the electrostatic grounding clamp 6, the densimeter 7, the pressure gauge 8, the roller 9, the second connecting pipe 10, the tank truck 11, the second dry quick connector 12. Specific implementation

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0033] The embodiment of the present application provides a flowmeter online calibration device, referring to Figure 1 , and combining Figures 2 to 4 , Figure 1 A structural schematic view of the flowmeter online calibration device, the flowmeter online calibration device comprises: a fixed frame 1, a control box 2, a standard flowmeter 3 and a first connecting pipe 4.

[0034] The control box 2 and the standard flowmeter 3 are both arranged on the fixed frame 1.

[0035] The liquid inlet of the standard flowmeter 3 is communicated with the first end of the first connecting pipe 4.

[0036] The second end of the first connecting pipe 4 is used for butt joint with the oil delivery pipeline of the oil delivery system.

[0037] The control box 2 is in communication connection with the standard flowmeter 3, and the control box 2 is used for displaying the measurement result of the standard flowmeter 3.

[0038] The utility model discloses an embodiment sets up control box 2 and standard flowmeter 3 in fixed frame 1, and the liquid inlet of standard flowmeter 3 is communicated with the first end of first connecting pipe 4, and the second end of first connecting pipe 4 is butt joint with the oil feeding pipeline of oil feeding system, and control box 2 is in communication connection with standard flowmeter 3, and control box 2 displays the measurement result of standard flowmeter 3. Through the flowmeter on -line calibration device disclosed above, when the flowmeter of oil feeding system needs to be calibrated, the second end of first connecting pipe 4 is butt joint with the oil feeding pipeline of oil feeding system, then the oil feeding system is opened, and oil enters standard flowmeter 3 through the oil feeding pipeline, and the reading of standard flowmeter 3 and flowmeter in the oil feeding process of oil feeding system is compared, so that the flowmeter of oil feeding system can be calibrated on -line, compared with the standard tank method calibration, since the metal tank body is not needed to be leveled, and the large metal tank body is not needed, therefore, the calibration device of the application not only has low operation difficulty, but also can effectively save manpower.

[0039] Specifically, the control box 2 comprises a processor, a display, a keyboard, a data storage and a power supply.

[0040] The display, the keyboard and the data storage are in communication connection with the processor.

[0041] The power supply is electrically connected with the processor, the display and the data storage respectively.

[0042] It should be noted that the display, the keyboard and the data storage are in communication connection with the processor, and then the data result processed by the processor can be displayed through the display, the keyboard can input the data of the flowmeter of the oil feeding system, and the data storage stores the measurement result of the standard flowmeter 3. When the oil feeding system stops oil output, the reading of the flowmeter of the oil feeding system is input through the keyboard, and the processor can automatically compare the reading of the standard flowmeter 3 and the flowmeter of the oil feeding system, so as to output the measurement performance of the flowmeter of the oil feeding system.

[0043] And the power supply is electrically connected with the processor, the display and the data storage respectively, which can effectively ensure that the processor, the display and the data storage can work normally.

[0044] It should be noted that the data of the application can be stored in the data storage or the mobile data storage, such as TF card (Trans-flash Card), mobile hard disk, U disk, etc.

[0045] Preferably, the power supply is a mobile power supply.

[0046] It should be noted that the power supply can be a mobile power supply such as a lithium battery pack, a lead-acid battery pack, or a direct current power supply, and a person skilled in the art can select according to the needs.

[0047] Specifically, the standard flowmeter 3 is a screw flowmeter.

[0048] It should be noted that the screw flowmeter is a device used to measure the flow rate of a fluid (liquid or gas) and is a type of volumetric flowmeter. The screw flowmeter is usually composed of one or more pairs of intermeshing screws that rotate to push the fluid through the device.

[0049] Further, the second end of the first connecting pipe 4 is provided with a first dry quick connector 5.

[0050] It should be noted that by providing the first dry quick connector 5 at the second end of the first connecting pipe 4, not only can the sealing connection of the first connecting pipe 4 with the oil feeding pipeline be ensured, but also the quick connection of the first connecting pipe 4 with the oil feeding pipeline can be achieved, further improving the flowmeter calibration efficiency of the oil feeding system.

[0051] Further, the flowmeter online calibration device further comprises an electrostatic grounding clamp 6 connected to the fixing frame 1.

[0052] It should be noted that by providing the electrostatic grounding clamp 6 connected to the fixing frame 1, all devices fixed on the fixing frame 1 can be grounded through the electrostatic grounding clamp 6, effectively avoiding safety accidents caused by static electricity during the metering process of the flowmeter online calibration device.

[0053] Further, the flowmeter online calibration device further comprises a density meter 7 provided at the liquid outlet of the standard flowmeter 3, and the density meter 7 is used to measure the fluid density and temperature.

[0054] It should be noted that the density meter 7 is integrated with a platinum resistance thermometer, so that the density meter 7 of the present application can measure the fluid density and temperature, and thus can measure the mass and volume of the fluid under the current environment.

[0055] Further, the flowmeter online calibration device further comprises a pressure gauge 8 provided at the first connecting pipe 4.

[0056] It should be noted that by providing the pressure gauge 8 at the liquid inlet of the standard flowmeter 3, the pressure in the first connecting pipe 4 can be measured in real time, and the calibration of the flowmeter of the oil feeding system can be realized under different pressures, ensuring the metering performance of the flowmeter of the oil feeding system under different pressures.

[0057] Further, the flowmeter online calibration device further comprises a plurality of rollers 9 provided at the bottom of the fixing frame 1.

[0058] It should be noted that by arranging the plurality of rollers 9 at the bottom of the fixing frame 1, the staff can conveniently move the flowmeter online calibration device.

[0059] Specifically, the rollers 9 are universal wheels.

[0060] It should be noted that the rollers 9 are arranged as universal wheels, so that the flowmeter online calibration device can be conveniently moved in various directions.

[0061] Further, the flowmeter online calibration device further comprises a second connecting pipe 10 and a second dry quick connector 12.

[0062] The first end of the second connecting pipe 10 is in communication with the liquid outlet of the standard flowmeter 3.

[0063] The second dry quick connector 12 is arranged at the second end of the second connecting pipe 10 and is used for being in communication with the tank truck 11.

[0064] It should be noted that by arranging the second connecting pipe 10, and then the standard flowmeter 3 is in communication with the tank truck 11 through the second connecting pipe 10, not only the oil can be added into the tank truck 11, but also the calibration of the flowmeter of the oil delivery system can be realized.

[0065] By arranging the second dry quick connector 12 at the second end of the second connecting pipe 10, not only the sealing property of the connection between the second connecting pipe 10 and the tank truck 11 can be ensured, but also the second connecting pipe 10 and the tank truck 11 can be quickly connected, and the calibration efficiency of the flowmeter of the oil delivery system is further improved.

[0066] Preferably, the standard flowmeter 3 is further provided with an oil discharge port, and the oil discharge port is provided with an oil discharge valve 31.

[0067] It should be noted that by arranging the oil discharge port on the standard flowmeter 3 and arranging the oil discharge valve 31 on the oil discharge port, the staff can conveniently discharge the medium in the standard flowmeter 3, so that the medium in the standard flowmeter 3 does not affect the measurement result of the flowmeter of the oil delivery system.

[0068] Preferably, the first connecting pipe 4 and the second connecting pipe 10 are both 4, explosion-proof composite hoses.

[0069] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flow meter on-line calibration device, characterized by, The utility model relates to a standard flowmeter and first connecting pipe are connected with the fixed frame, control box, standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flowmeter and first connecting pipe are connected with the fixed frame, the standard flow ​ ​ ​ ​ ​ 2. The flow meter online calibration device of claim 1, wherein, ​ ​ ​ 3. The flow meter online calibration device of claim 1, wherein, ​ 4. The flow meter online calibration device of claim 1, wherein, ​ 5. The flow meter online calibration device of claim 1, wherein, ​ ​ 6. The flow meter online calibration device of claim 1, wherein, ​ ​ 7. The flow meter online calibration device of claim 1, wherein, ​ ​ 8. The flow meter online calibration device of claim 1, wherein, ​ ​ 9. The flow meter online calibration device of claim 8, wherein, ​ 10. The flow meter online calibration device of claim 1, wherein, ​ ​ ​ ​

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